8a+9-3(a+4)=

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Solution for 8a+9-3(a+4)= equation:


Simplifying
8a + 9 + -3(a + 4) = 0

Reorder the terms:
8a + 9 + -3(4 + a) = 0
8a + 9 + (4 * -3 + a * -3) = 0
8a + 9 + (-12 + -3a) = 0

Reorder the terms:
9 + -12 + 8a + -3a = 0

Combine like terms: 9 + -12 = -3
-3 + 8a + -3a = 0

Combine like terms: 8a + -3a = 5a
-3 + 5a = 0

Solving
-3 + 5a = 0

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '3' to each side of the equation.
-3 + 3 + 5a = 0 + 3

Combine like terms: -3 + 3 = 0
0 + 5a = 0 + 3
5a = 0 + 3

Combine like terms: 0 + 3 = 3
5a = 3

Divide each side by '5'.
a = 0.6

Simplifying
a = 0.6

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